diff --git a/.github/workflows/ci.yaml b/.github/workflows/ci.yaml
index 3e2d66a..0708b94 100644
--- a/.github/workflows/ci.yaml
+++ b/.github/workflows/ci.yaml
@@ -53,7 +53,13 @@ jobs:
         run: tox -e unit
 
   integration-test:
-    name: Integration tests (LXD)
+    strategy:
+      fail-fast: true
+      matrix:
+        bases:
+          - ubuntu@20.04
+          - ubuntu@22.04
+    name: Integration tests (LXD) | ${{ matrix.bases }}
     runs-on: ubuntu-latest
     needs:
       - inclusive-naming-check
@@ -68,4 +74,4 @@ jobs:
           provider: lxd
           juju-channel: 3.1/stable
       - name: Run tests
-        run: tox -e integration
+        run: tox run -e integration -- --charm-base=${{ matrix.bases }}
diff --git a/pyproject.toml b/pyproject.toml
index ee2a736..ca3e80b 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -47,8 +47,9 @@ extend-ignore = [
     "D409",
     "D413",
 ]
-ignore = ["E501"]
+ignore = ["E501", "D107"]
 extend-exclude = ["__pycache__", "*.egg_info"]
+per-file-ignores = {"tests/*" = ["D100","D101","D102","D103","D104"]}
 
 [tool.ruff.mccabe]
 max-complexity = 10
diff --git a/tests/integration/conftest.py b/tests/integration/conftest.py
index d4a4496..005796b 100644
--- a/tests/integration/conftest.py
+++ b/tests/integration/conftest.py
@@ -17,12 +17,25 @@
 
 import pathlib
 
+import pytest
+from _pytest.config.argparsing import Parser
 from helpers import ETCD, NHC, VERSION
-from pytest import fixture
 from pytest_operator.plugin import OpsTest
 
 
-@fixture(scope="module")
+def pytest_addoption(parser: Parser) -> None:
+    parser.addoption(
+        "--charm-base", action="store", default="ubuntu@22.04", help="Charm base to test."
+    )
+
+
+@pytest.fixture(scope="module")
+def charm_base(request) -> str:
+    """Get slurmdbd charm base to use."""
+    return request.config.getoption("--charm-base")
+
+
+@pytest.fixture(scope="module")
 async def slurmd_charm(ops_test: OpsTest):
     """Build slurmd charm to use for integration tests."""
     charm = await ops_test.build_charm(".")
diff --git a/tests/integration/helpers.py b/tests/integration/helpers.py
index 9b21ee6..b59eceb 100644
--- a/tests/integration/helpers.py
+++ b/tests/integration/helpers.py
@@ -21,6 +21,8 @@
 from typing import Dict
 from urllib import request
 
+from pylxd import Client
+
 logger = logging.getLogger(__name__)
 
 ETCD = "etcd-v3.5.0-linux-amd64.tar.gz"
@@ -33,13 +35,28 @@
 ).stdout.strip("\n")
 
 
+def modify_default_profile() -> None:
+    """Modify the default LXD profile.
+
+    Notes:
+        The default profile needs to be modified so that slurmd can
+        use proctrack/cgroup for process tracking inside an LXD container.
+    """
+    client = Client()
+    config = {"security.nesting": "true"}
+    logger.info(f"Updating default LXD profile configuration to {config}")
+    default = client.profiles.get("default")
+    default.config.update(config)
+    default.save()
+
+
 def get_slurmctld_res() -> Dict[str, pathlib.Path]:
     """Get slurmctld resources needed for charm deployment."""
     if not (version := pathlib.Path(VERSION)).exists():
-        logger.info(f"Setting resource {VERSION} to value {VERSION_NUM}...")
+        logger.info(f"Setting resource {VERSION} to value {VERSION_NUM}")
         version.write_text(VERSION_NUM)
     if not (etcd := pathlib.Path(ETCD)).exists():
-        logger.info(f"Getting resource {ETCD} from {ETCD_URL}...")
+        logger.info(f"Getting resource {ETCD} from {ETCD_URL}")
         request.urlretrieve(ETCD_URL, etcd)
 
     return {"etcd": etcd}
@@ -48,7 +65,7 @@ def get_slurmctld_res() -> Dict[str, pathlib.Path]:
 def get_slurmd_res() -> Dict[str, pathlib.Path]:
     """Get slurmd resources needed for charm deployment."""
     if not (nhc := pathlib.Path(NHC)).exists():
-        logger.info(f"Getting resource {NHC} from {NHC_URL}...")
+        logger.info(f"Getting resource {NHC} from {NHC_URL}")
         request.urlretrieve(NHC_URL, nhc)
 
     return {"nhc": nhc}
diff --git a/tests/integration/test_charm.py b/tests/integration/test_charm.py
index dfb82e3..61c3761 100644
--- a/tests/integration/test_charm.py
+++ b/tests/integration/test_charm.py
@@ -16,15 +16,16 @@
 """Test slurmd charm against other SLURM charms in the latest/edge channel."""
 
 import asyncio
+import logging
+import pathlib
+from typing import Any, Coroutine
 
 import pytest
-from helpers import (
-    get_slurmctld_res,
-    get_slurmd_res,
-)
+from helpers import get_slurmctld_res, get_slurmd_res, modify_default_profile
 from pytest_operator.plugin import OpsTest
 
-SERIES = ["focal"]
+logger = logging.getLogger(__name__)
+
 SLURMD = "slurmd"
 SLURMDBD = "slurmdbd"
 SLURMCTLD = "slurmctld"
@@ -33,14 +34,16 @@
 
 
 @pytest.mark.abort_on_fail
-@pytest.mark.parametrize("series", SERIES)
 @pytest.mark.skip_if_deployed
-async def test_build_and_deploy(ops_test: OpsTest, series: str, slurmd_charm):
-    """Test that the slurmd charm can stabilize against slurmctld, slurmdbd and percona."""
+@pytest.mark.order(1)
+async def test_build_and_deploy(
+    ops_test: OpsTest, slurmd_charm: Coroutine[Any, Any, pathlib.Path], charm_base: str
+) -> None:
+    """Test that the slurmd charm can stabilize against slurmctld, slurmdbd and MySQL."""
+    logger.info(f"Deploying {SLURMD} against {SLURMCTLD}, {SLURMDBD}, and {DATABASE}")
+    modify_default_profile()
     res_slurmd = get_slurmd_res()
     res_slurmctld = get_slurmctld_res()
-
-    # Fetch edge from charmhub for slurmctld, slurmdbd and percona and deploy
     await asyncio.gather(
         ops_test.model.deploy(
             SLURMCTLD,
@@ -48,36 +51,36 @@ async def test_build_and_deploy(ops_test: OpsTest, series: str, slurmd_charm):
             channel="edge",
             num_units=1,
             resources=res_slurmctld,
-            series=series,
+            base=charm_base,
         ),
         ops_test.model.deploy(
             SLURMDBD,
             application_name=SLURMDBD,
             channel="edge",
             num_units=1,
-            series=series,
+            base=charm_base,
         ),
         ops_test.model.deploy(
             ROUTER,
             application_name=f"{SLURMDBD}-{ROUTER}",
             channel="dpe/edge",
-            num_units=1,
-            series=series,
+            num_units=0,
+            base=charm_base,
         ),
         ops_test.model.deploy(
             DATABASE,
             application_name=DATABASE,
-            channel="edge",
+            channel="8.0/edge",
             num_units=1,
-            series="jammy",
+            base="ubuntu@22.04",
         ),
     )
     # Attach resources to charms.
     await ops_test.juju("attach-resource", SLURMCTLD, f"etcd={res_slurmctld['etcd']}")
     # Set relations for charmed applications.
-    await ops_test.model.relate(f"{SLURMDBD}:{SLURMDBD}", f"{SLURMCTLD}:{SLURMDBD}")
-    await ops_test.model.relate(f"{SLURMDBD}-{ROUTER}:backend-database", f"{DATABASE}:database")
-    await ops_test.model.relate(f"{SLURMDBD}:database", f"{SLURMDBD}-{ROUTER}:database")
+    await ops_test.model.integrate(f"{SLURMDBD}:{SLURMDBD}", f"{SLURMCTLD}:{SLURMDBD}")
+    await ops_test.model.integrate(f"{SLURMDBD}-{ROUTER}:backend-database", f"{DATABASE}:database")
+    await ops_test.model.integrate(f"{SLURMDBD}:database", f"{SLURMDBD}-{ROUTER}:database")
     # IMPORTANT: It's possible for slurmd to be stuck waiting for slurmctld despite slurmctld and slurmdbd
     # available. Relation between slurmd and slurmctld has to be added after slurmctld is ready
     # otherwise risk running into race-condition type behavior.
@@ -88,12 +91,12 @@ async def test_build_and_deploy(ops_test: OpsTest, series: str, slurmd_charm):
         application_name=SLURMD,
         num_units=1,
         resources=res_slurmd,
-        series=series,
+        base=charm_base,
     )
     # Attach resources to slurmd application.
     await ops_test.juju("attach-resource", SLURMD, f"nhc={res_slurmd['nhc']}")
     # Set relations for slurmd application.
-    await ops_test.model.relate(f"{SLURMD}:{SLURMD}", f"{SLURMCTLD}:{SLURMD}")
+    await ops_test.model.integrate(f"{SLURMD}:{SLURMD}", f"{SLURMCTLD}:{SLURMD}")
     # Reduce the update status frequency to accelerate the triggering of deferred events.
     async with ops_test.fast_forward():
         await ops_test.model.wait_for_idle(apps=[SLURMD], status="active", timeout=1000)
@@ -101,8 +104,10 @@ async def test_build_and_deploy(ops_test: OpsTest, series: str, slurmd_charm):
 
 
 @pytest.mark.abort_on_fail
+@pytest.mark.order(2)
 async def test_munge_is_active(ops_test: OpsTest):
     """Test that munge is active."""
+    logger.info("Checking that munge is active inside Juju unit")
     unit = ops_test.model.applications[SLURMD].units[0]
     cmd_res = (await unit.ssh(command="systemctl is-active munge")).strip("\n")
     assert cmd_res == "active"
@@ -112,8 +117,10 @@ async def test_munge_is_active(ops_test: OpsTest):
 # systemd service failing.
 @pytest.mark.xfail
 @pytest.mark.abort_on_fail
+@pytest.mark.order(3)
 async def test_slurmd_is_active(ops_test: OpsTest):
     """Test that slurmd is active."""
+    logger.info("Checking that slurmd is active inside Juju unit")
     unit = ops_test.model.applications[SLURMD].units[0]
     cmd_res = (await unit.ssh(command="systemctl is-active slurmd")).strip("\n")
     assert cmd_res == "active"
diff --git a/tox.ini b/tox.ini
index 3d35bae..7dfa42a 100644
--- a/tox.ini
+++ b/tox.ini
@@ -57,14 +57,16 @@ commands =
 description = Run integration tests
 deps =
     juju==3.1.0.1
+    pylxd==2.3.1
     pytest==7.2.0
-    pytest-operator==0.22.0
+    pytest-operator==0.26.0
+    pytest-order==1.1.0
+    tenacity==8.2.2
+    -r{toxinidir}/requirements.txt
 commands =
     pytest -v \
-           -s \
-           --tb native \
-           --ignore={[vars]tst_path}unit \
-           --log-cli-level=INFO \
-           --model controller \
-           --keep-models \
-           {posargs}
+        -s \
+        --tb native \
+        --log-cli-level=INFO \
+        {[vars]tst_path}integration \
+        {posargs}